A novel nonsubsampled complex contourlet transform(NSCCT)is constructed by combining the two dimensional dual-tree complex wavelet transform(DT-CWT)and nonsubsampled directional filter bank(NSDFB).And an algorithm of image denoising based on nonsubsampled complex contourlet transform is proposed by using the symmetric normal inverse Gaussian distribution prior and a Bayesian minimum mean squared error estimator.The experimental results show that the nonsubsampled complex contourlet transform can restrain Gi...